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Trade Logic Developer Interview Questions


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If I write an empty class in C++ (a class with no functions or variables), can I do the following: EmptyClass a = new EmptyClass(); EmptyClass b = a;

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Yes, because at compile time the compiler will generate an EmptyClass(&EmptyClass ToCopy) constructor that will create a deep-copy of the object.

Why would I want to use a ScopeLock in a multi-threaded application instead of the standard: Mutex m; m.lock(); doSomething(); m.unlock();

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